INDUSTRIAL-STRENGTH: Brass alloy plug blades and connector contacts resist heat rise, providing excellent conductivity INSTALLS 4x FASTER: Quick-thread assembly screws install four times faster than competitive products; device comes disassembled and tri-drive backed-out screws come ready to wire RUGGED, NON-SLIP NYLON HOUSING: easy-grip contour molded into the back body prevents hand slippage SUPERIOR CORD PULL-OUT PROTECTION: Scallop shell design with double dovetail protects against cord pull-out forces CLEAR VIEW OF CONNECTION: clear, high-impact-resistant thermoplastic terminal chamber -InchCORD PROTECTION FROM HARMFUL ELEMENTS: Integral flexible rubber cord grommet conforms to and seals around cord to provide protection from oils, water, or chips entering wiring chamber-Inch CORD DIAMETER: .225-Inch-1.150-Inch